Actually, that is the earliest train available that leaves after 15:30. The next train before that departs at 15:00 which wouldn't fit your criteria. Would you like to book any tickets?
I guess that will have to do. Go ahead and book it.
train-day train-departure train-destination train-leaveat train-people
train-day train-departure train-destination train-leaveat train-people
train-day train-departure train-destination train-leaveat train-people
train-day train-departure train-destination train-leaveat train-people